It's time to dance on Modern Family, which means it's also time for all the Pritchett-Dunphy adults to try their hand at chaperoning.

In tomorrow night's new episode, Luke (Nolan Gould) and Manny (Rico Rodriguez) are taking charge of the school dance, and putting their moms and uncles in charge of keeping things under control. For Claire (Julie Bowen) and Gloria (Sofia Vergara), that means confiscating alcohol (so they can drink it later) and dealing with an insufferable fellow PTA mom named Marjorie, played by Saturday Night Live'sVanessa Bayer.

In the exclusive sneak peek above, Claire panics when Marjorie approaches and attempts to start a fake fight with Gloria to prevent having to deal with her. Of course, Claire's first instinct gets a little too real.

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Fortunately (or maybe unfortunately) for Marjorie, Claire and Gloria eventually decide to help her out by setting her up with the school's principal, but something tells us that probably won't work out precisely how they want it to...

Tomorrow night's episode also finds Mitchell (Jesse Tyler Ferguson) having a bit of a crisis when he sees a bit too much of himself in the high school bully, while Manny and Luke's dance is threatened by a texting error and Jay's (Ed O'Neill) attempt to use Phil (Ty Burrell) as an excuse to not chaperone the dance totally backfires. Knowing this show, it will all be chaos, but at least it will be hilarious.